Growth, polarized spectral properties, and 1.5-1.6 μm laser operation of Er:Yb:Sr3Gd2(BO3)4 crystal

被引：20
作者：
Huang, J. H. [1 ,2 ]
Chen, Y. J. [1 ]
Gong, X. H. [1 ]
Lin, Y. F. [1 ]
Luo, Z. D. [1 ]
Huang, Y. D. [1 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2009年 / 97卷 / 02期
基金：
中国国家自然科学基金;
关键词：
RARE-EARTH IONS; SPECTROSCOPIC PROPERTIES; YB-YAL3(BO3)(4) LASER; CONTINUOUS-WAVE; YB-YCOB; ER3+; ABSORPTION; PERFORMANCE; INTENSITIES;
D O I：
10.1007/s00340-009-3570-4
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An Er:Yb:Sr3Gd2(BO3)(4) crystal was grown by the Czochralski method. The polarized spectral properties of the crystal were investigated, including the polarized absorption and fluorescence spectra and fluorescence decay. The fluorescence quantum efficiency of the upper laser level I-4(13/2) of Er3+ ions and the efficiency of the energy transfer from Yb3+ to Er3+ ions were calculated. End-pumped by a diode laser at 970 nm in a hemispherical cavity, a 1.6 W quasi-cw laser at 1.5-1.6 mu m with a slope efficiency of 18% and an absorbed pump threshold of 5.9 W was achieved in a 1.8-mm-thick Z-cut Er:Yb:Sr3Gd2(BO3)(4) crystal. This crystal has a flat and broad gain curve at 1.5-1.6 mu m and so is also a potential gain medium for tunable and short pulse lasers.
引用
收藏
页码：431 / 437
页数：7
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